hobbylock 4762 _iL ‘ii Instruction manual
For easier understanding of this instruction manual please fold this or the last page out when reading. -J / I j \ Safety rules For the United Kingdom only The leads must definitely not be connected to the safety lead terminal I nor to a plug with three pins. The wires in the mains lead are coloured accor ding to the followg code: Brown.
Important safety instructions I For the United States only When you use an electrical appliance, basic safety precau tions should always be adhered to es follows: Read all instructions before using this sewing machine. DANGER To reduce the risk of electric shock: 1. The sewing machine should never be left unattended when plugged in. Alweys unplug this appliance from the electric outlet immediately after using and before cleaning it. 2. Always unplug before relamping.
Parts of the hobbylock 4762 1 2 3 4 5 6 7 8 9 10 11 12 13 Thread tension dial/left needle Thread tension dial/right needle Carrying handle Thread tension dial/right looper Thread tension dial/left looper Converter Looper cover Sewing foot Needle plate Detachable work support Accessory box Needle holder Lamp cover 14 15 16 17 18 19 Right overedge looper Left overedge looper Fixed lower knife Seam width adjustment knob Bed slide for stitch width chaining land Movable upper knife
Notes on Safety Notes on safety for domestic sewing machines accordance with EN 60335-2-28 and IEC 60335-2-28. 1. The user must exercise adequate cau tion with regard to the up and down movement of the needle and con stantly observe the sewing area while sewing. 2. When leaving the machine unatten ded, during maintenance work or when replacing mechanical parts or accessories, always disconnect the machine from the mains by pulling out the mains plug. 3.
Simple, up-to-date sewing Congratulations! You have bought a high-quality product that provides unique advantages. Your new hobbylock 4760 can take any material in its stride and will sew, trim and neaten up for you in one operation. Your PFAFF hobbylock features the very latest in design and technology, and it is just as easy to use as this instruction manual is to follow. If you now take a little time to study the instruc tion manual, nothing can go amiss.
Contents Page Accessory box 7 Accessories Adjusting the seam width Adjusting the stitch length 7 .
Page Telescopic thread guide Thread spool net Thread unreeling disc . 10 10 Threading/guide wires Threading right overedge looper (red) Threading left overedge looper (yellow) 12 Threading right needle A (green) Threading left needle B (blue) 16 Thread reel change on threaded machine Thread chain cutter Thread table for 2-, 3- and 4-thread overedge seam 18 13 14—15 17 19 55 2-needle, 3-thread overedge closing seam. 2-thread overedge seam FLATLOCK (wide, narrow).
i I I? Wtj 4 W;e A I I
Accessory box Pull accessory box 11 to the left and remove the accessories. 44, Accessories The following accessories are included with the machine: 1 Overedge needles system EL X 705, Cat Nr. 2002 2 Screwdriver (large) 3 Screwdriver (small) 4 5 8 7 8 9 Pair of tweezers Cleaning brush Lower knife Thread unreeling discs (4x) Thread spool nets (4x) Machine oil Machine Cover The machine cover protects the machine against dust and dirt. After each use push in telescopic thread guide 21.
Connecting the foot control Insert the plugs of the foot control into machine socket 27 and the power source respectively. Sewing speed is regulated by applying pressure to the foot control. In addition, sewing speed can be set by means of the bed slide adjuster at the top end of the foot control. = half speed Position Position 44 = full speed Mains switch The sewing light lights up when mains switch 28 is switched on. The machine is now ready for operation.
PFAcF 2 hobbYkk 6 l 4 I PIAFF hobbYkCk 4762 4 4 Lint box Insert the upper tabs of lint box 34 into the upper slots of looper cover 7. Looper cover Slide looper cover 7 as far as it will go to the right and swing it downwards. Indivi dual threading paths are displayed in colour on the inside of the machine, as well as the threading method of the overedge looper. In addition, the mounting procedure for the converter and the three most common stitch types are shown symbolically.
Thread spool stand Telescopic thread guide Before the thread spools are set in place, thread spool stand 24 must be pulled as far as it will go to the back. Extend telescopic thread guide 21 upwards. To ensure optimum thread take-off, the two upper telescopes must be rotated slowly until their locking balls are heard to lock into place. Thread spool net Thread unreeling disc The thread spool net included in the accessories should be used for synthetic yarns which unwind easily from the spool.
I A right overedge needle threaded B o Q left overedge needle threaded left and right overedge needles threaded Needle position As shown in the illustration, up to two needles can be inserted into the needle holder. Retaining screw A belongs to the right overedge needle, retaining screw B to the left overedge needle. In this instructions manual the various needle positions are shown in a schematic drawing of the needle holder. See the above examples.
4 Faden Threading A colour-coded threading diagram for quick reference is to be found behind the looper cover, i.e. inside the machine. Thread the individual threads following steps ito 4. — as shown 3 Faden linke rechte Nadel Nadel The colour markings are applicable as fol lows: 1. Right overedge looper 2. Left overedge looper 3. Right needle = = = red yellow green — 4. Left needle = blue H I Threading/guide wires Place the thread spools on thread spool stands 25.
Threading/right overedge looper (red) Thread by following steps ito 9. Note: To facilitate threading, use the tweezers included in the accessory box. 3 I J1 5— tnsert the thread along the path marked in red through guides 5 to 8. Insert the thread from the front through the eye in overedge looper 9. Pull about 10 cm of thread through the looper and lay it to the left underneath the sewing foot.
Threading the left overedge loopers (yellow) Turn the handwheel in the direction of the arrow you until overedge looper 15 is positioned at the extreme right. :J ‘: I ‘I Insert the thread by following steps ito 10. Note: To facilitate threading, use the tweezers included in the accessory box.
4 Insert the thread along the path marked in yellow through guides 4 to 8. The diagrams to be found behind the looper cover illustrate the principles of threading. Lay the thread from back to front over the right-hand side of the looper. Carefully pull the thread to the left and slightly down until it slips into notch B (= threa ding point 9) of the looper. C Insert the thread from the front through ihe eye of left overedge looper C (= threa ding point 10).
Threading/right needle A (green) Insert the thread by following steps 1 to 9. I Note: The thread must run through the upper slot in guide 7. 16 Pull about 10 cm of thread through the looper and lay it to the left underneath the sewing foot. Note: To facilitate threading of the needle eye, use the tweezers included in the accessory box and lower the sewing foot.
Threading/left needle B (blue> Thread the left needle B by following steps ito 7. Hi Note: The thread must run through the lower slot in guide 5. Pull about 10 cm of thread through the needle eye and lay it to the left under neath the sewing foot. Note: To facilitate threading of the needle eye, use the tweezers included in the accessory box and lower the sewing foot.
Important note on threading: The needle threads must always be inser ted last in order to avoid mistakes with the left looper thread and thread breakage or missed stitches. The thread must also be removed from the needle(s) if the looper threads break. Re-insert the looper thread first, then re-thread the needle(s). Thread reel change on threaded machine Cut the threads close to the thread spool and set the new thread reels in place.
Sewing foot lift The sewing foot can be raised and lowe red with sewing foot lift 32. The maxi mum vertical lift of 6 mm for the sewing foot for particularly thick fabrics can be achieved by also depressing the sewing foot lift towards the back. Thread chain cutter After finishing a seam, continue to sew a thread chain of 15 20 cm. Pull the thread chain towards the front over thread chain cutter 23. The thread chain wilt thus be cut.
Disengaging the upper knife Switch off at the mains switch Raise upper knife 19 to its upppermost position by rotating the handwheel. Detach the lint box and open the looper cover. Now slide the holder of the mova ble upper knife fully towards the right. Engaging the upper knife Slide the holder of the movable upper knife towards the right and swing the knife back until it locks into its working position. Close the looper cover and re attach the lint box.
Mounting the converter Switch off at the mains switch The converter must be mounted for all 2-thread seams and the 2-needle, 3-thread overedge closing seam. Detach the lint box and open the looper cover. Converter 6 is located in the front of the machine housing. Pull it out. Insert hub A of the converter into the aperture of the right overedge looper. Rotate the handwheel until the right overedge looper is positioned to the right of the movable upper knife.
11 Adjusting seam width Switch off at the mains switch Detach the mt box. The seam width can be continuously adjusted as desired from 3.0 mm to 4.5 mm by turning seam width adjustment knob 17. The seam width is can be more easily adjusted if the upper knife holder is pushed slightly to the right. The adjustments are marked on the needle plate. R is the seam width adjust ment for rolled seams. 5,2rnm O24) Note: The seam width adjustments between 3.0 mm and 4.5 mm apply to the right needle only.
Adjusting the stitch length The stitch length can be set as desired from F ( 1 mm> to 4 mm by turning stitch length adjustment knob 31. I 3 For most sewing work, the stitch length adjustment knob should be set at 3 mm. When working with close-knit fabrics, set the adjustment knob to 4 mm. Sewing toot pressure The machine’s factory-set sewing foot pressure is suitable for medium-heavy fabrics. The sewing foot pressure does not need to be changed for most fabrics.
Differential feed The differential feed consists of two feed dogs (A + B), arranged one behind the other, which move the workpiece, Adjust ment lever 30 regulates the movement of the front feed dog (A), and thus the amount of fabric to be fed through. It can be adjusted within the range 0.5 and 2.0. The standard adjustment is 1 .0, by which the front feed dog (A) moves syn chronously with the rear feed dog (B), i.e. the front and rear feed dogs both move the same amount of fabric.
4 Set differential feed adjustment lever 30 to 10 so that the front feed dog moves twice as fast as the rear feed dog, i.e. the front feed dog feeds through twice as much fabric as the rear feed dog. As a result, the fabric is gathered. This prevents the seam from becoming stretched when sewing knitted fabrics such as Jersey and rib stitch goods. The result is a smooth seam (C). Fashionable touches can also be intro duced in this way, such as the gather effect when using very delicate fabrics (D).
pcAFF Sewing with the free arm Detach the work support Remove the lint box and pull detachable work support 10 towards the left. Reattach the lint box. The free arm is particularly useful for sewing tubular items such as trouser legs and sleeves. Insert the article over the free arm. Reattaching the work support Position the detachable work support so that it is level with the machine cover, then slide it to the right until it locks into position.
N .- Setting the bed slide for the stitch width chaining land For standard overlock seams: Set the bed slide for chaining land 18 to position S. Chaining land A will be pushed forward All standard overlock seams can be sewn with this adjustment. I 4 For rolled hems Set the bed slide for chaining land 18 to position R. Chaining land A will be pushed backward. All rolled hems can be sewn with this adjustment.
Program summary Application Program 4-thread overedge seam Sewing together any material, especially elastic fabrics, with simultaneous serging.
Stitch length Needle thread tension The settings are for medium-heavy fabrics and normal polyester yarn green blue N Stitchwidth Position of bed slide for chaining land Converter S = with D = without yellow red —2 -1 3 3.5 S D —2 —1 3 3.5 S D —2 —1 3 3.5 S D -5 +35 3 35 S D -5 +4 3 3,5 S C N +2 3 3.5 5 C —4.5 N +2 3 3.5 S C -1 +2 -1 F R R C —2 N N N N —4.
Program summary Application Programs Needle position =Ieft 2!J = right Serging lightweight to Folded 3-thread rolled hem medium-heavy fabrics. Decorative finished edges. 2-thread oeredge seam (wide) FLATLOCK •je seam (narrow> 2-thread o FLATLOCK Serging medium-heavy fabrics. As flatlock seam for sewing together stretch fabncs Serging lightweight fabrics. As flatlock seam for sewing together stretch fabrics. Serging lightweight fabrics. 2-thread serging seam (wide> i•°I .
Stitch length Needle thread tension The settings are for meddium-heavy fabrics and normal polyester yarn blue green Position of bed slide for chaining land Converter = with D = without 1 yellow red +3 F R R D +25 3 35 S I +2 3 3.5 S S —3.5 3 3.5 S S N —3.5 3 3.5 S S —4 +1 F R R I -1 -2 F R R S —2 —4 3 3.
Adjusting the thread tension The following pages contain directions for setting thread tensions for all programs. Adjust the tension by turning the tensio rnng wheel until the dot marker is at the desired setting. PFAFF hobbylock The settrngs for adjusting thread tension are recommendations, Fabric type, yarn quality and needle gsuc’ will influence seam results. For this reason it is always best to sew a test seam to cnc the interlocking of threads.
The left needle thread (blue) is too loose. Increase the tension of the blue thread, The right looper thread (red) is visible on the reverse side of the fabric. ncrease the tension of the red thread and/or reduce the tension of the yellow thread. The right needle thread (green) is too loose. Increase the tension of the green thread. The left looper thread (yellow) is visible on the face side of the fabric. Increase the tension of the yellow thread and/or reduce the tension of the red thread.
3-thread overedge seam [ J wide [narrow green blue N blue I green N T red yellow -2 —1 red I yellow -2 -1 The right tooper thread (red) s visible on the reverse side of the fabric, Increase the tension of the red thread and,’or reduce the tension of the yellow thread, 34 The needle thread is too loose. Increase the tension of the respective needle thread. The left looper thread (yellow) is visible on the face side of the fabric.
3-thread serging seam wide blue green blue 1 yellow —5 N narrow red The needle thread is too loose. Increase the tension of the respective needle thread. green red N —5 j yellow +4 The right looper thread
__________ __________ __________ _________ 3-thread decorative seam serging, FLATL.OCK wide blue I green I blue j I green 1 red N yellow j +2 N -4,5 narrow red The needle thread is too tight. Reduce the tension of the respective needle thread. I j yellow +2 The right looper thread (red) is visible on the reverse side of the fabric, Increase the tension of the red thread. The left looper thread (yellow) is too loose. Increase the tension of the yellow thread.
3-thread rolled hem — blue — green red yellow +2 -1 The right looper thread (red> is visible on the reverse side of the fabric. Increase the tension of the red thread and/or reduce the tension of the yellow thread. The right needle thread (green) is too loose. Increase the tension of the green thread. The left looper thread (yellow) is visible on the face side of the fabric. Increase the tension of the yellow thread and/or reduce the tension of the red thread.
The right needle thread (green) is too oose. Folded 3-thread rolled hem [ blue green -2 j red yellow N ÷3 The right looper thread (red) only partly loops around the edge of the fabric. Reduce the tension of the red thread and/ or increase the tension of the yellow thread. 38 Increase the tension of the green thread. The left looper thread (yellow) s visible on the face side of the fabric. Increase the tension of the yellow thread and/or reduce the tension of the red thread.
24hread overedge seams FLATLOCK red [ yellow + narrow )- I blue green -4 red yellow +2 Note: Attach the converter (see page 21) for sewrng 2thread overedge seams FLATLOCK). 1 The needle thread is too loose or the left looper thread (yellow) is too tight. Increase the tension of the respective needle thread and/or reduce the tension of the yellow thread. The left looper thread (yellow) is visible on the reverse side of the fabric.
2-thread serging seam wide blue I I green I red green II red II yellowl N narrow blue I N II yellow II j_3,5J Note: Attach the converter (see page 21) for sewing 2-thread serging seams (FLATLOCK). The needle thread is too loose. Increase the tension of the respective needle thread and/or reduce the tension of the yellow thread. The left looper thread (yellow) is too loose. Increase the tension of the yellow thread.
2-thread rolled hem Note: Attach the converter (see page 21) for sewing 2-thread rolled hems The right needle thread (green) is too tight.
Folded 2-thread rolled hem [ blue green red elloj Note: Attach the converter (see page 21) for sewing 2-thread rolled hems. The right needle thread (green) is too loose. Increase the tension of the green thread and/or reduce the tension of the yellow thread. The left looper thread (yellow) is too tight. Reduce the tension of the yellow thread and/or increase the tension of the green thread.
face side face side reverse side reverse side 2-needle, 3-thread overedge closing seam blue ([-i green red -2 The left needle thread (blue) is too loose. Increase the tension of the blue thread. yeiiowj - Note: Attach the converter (see page 21) for sewing 2-needle, 3-thread overedge closing seams. face side face side reverse side The right needle thread (green) is too loose, Increase the tension of the green thread. reverse side The left looper thread (yellow) is too tight.
Machine maintenance Cleaning the machine Switch off at the mains switch Detach the lint box and open the looper cover. Disengage the upper knife and remove the sewing foot. Lubricating the machine Switch off at the mains switch The point shown above should be lubrica ted with the oil from the accessories every time the machine is cleaned. One or two drops of PFAFF sewing machine oil are sufficient. All other parts are manufactu red from special material and do not require lubrication.
W11 Changing the lower knife Switch off at the mains switch Removal: Detach the lint box and open the looper cover. Disengage the upper knife and move the needle(s) to the uppermost position. Use the arge screw driver from the accessories to loosen lower knife retaining screw A. Remove the screw and the lower knife. Insertion: Insert a new lower knife into the recess provided and tighten the retai ning screw. Engage the upper knife and close the looper cover.
Changing the light bulb (sewing light) Switch off at the mains switch Use the large screwdriver from the acces sories to loosen the retaining screw of sewing light cover 1 3 until the latter can be removed. Push the bulb into the socket, give it a half-turn in a counter-clockwise direction and remove it. Insert a new bulb (max. 1 5 Watt) into the socket and rotate it until the two cams of the bulb lock in.
Special accessories On the following pages you will find descriptions of all sewing foots available as special accessories to help you to get the best from your hobbylock 4762. By using these sewing feet, you can perform various sewing steps in one, thus saving time and ensu ring perfect sewing results. The special accessories can be purchased from your PFAFF dealer. Special accessory Order No.
Blindstitch foot The blindstitch foot is ideal for professio nal sewing of invisible seams on mediumheavy and thick fabrics. The seam is trim med, serged and ,,blind’ stitched in a sin gle operation. Setting the machine Remove the left needle. Set your machine to 3-thread overedge seam (narrow) and select stitch length 4. Working; N N 4 Raise the needle to its uppermost position and insert the blindstitch foot. Fold the seam inwards.
String sewing foot This sewing foot is used for sewing in gimp threads (cords, synthetic threads) up to a thickness of 1 .0 mm. It creates a wavelike hem finish in delicate fabrics e.g. for evening dresses and bridal gowns or curtains. — Setting the machine Set your machine to folded 3-thread rol led hem. Jorking laise the needle to its uppermost position nd insert the string sewing foot. Insert he gimp thread into guide 1 and pull it hrough hole 2 into lateral guide 3.
Elastic tape sewing foot This sewing foot is used for sewing on elastic tape. in the same operation, the fabric is trimmed and serged, and also gathered by the contracting elastic tape. Setting the machine Set your machine to 4-thread overedge seam. The seam width is determined by the width of the elastic tape. 1 // Working Raise the needle to its uppermost position and insert the elastic tape sewing foot. Loosen screw I so that brake 3 at ope ning 2 is opened by approx. 2 mm.
Shirring foot The shirring foot enables two fabrics to be sewn together, whereby the bottom ply is automatically gathered. It is ideal for chil dren’s wear, as well as fascinating gathe red valances for curtains, table linen or tiered skirts. Setting the machine Set your machine to 4-thread overedge seam and the differential feed to 2. Working Raise the needle to its uppermost position and insert the shirring foot. Lift the sewing foot and insert the fabric ply to be shirred (face side up>.
Cording foot This sewing toot allows you to sew toge ther two fabric plies, with a cording tape between them, in one operation. Ideal for casual wear, sports bags and upholstery covers. Setting the machine Set your machine to 4-thread overedge seam and seam width 4,5 mm. Working Raise the needle to its uppermost position and insert the cording foot. Place the two fabric plies on top of one another (face side to face side) and insert the cording tape between the two plies.
Bead sewing foot This sewing foot is used for sewing on beads, sequins, strass bands, lead and ordinary cords. Setting the machine Set your machine to 3-thread overedge seam (narrow or wide depending on bead size). Stitch length should be between 3 and 4. 2 I Working Raise the needle to its uppermost position and insert the bead sewing foot. Insert the string of beads into guide 1 and beneath guide 2 approx, 5 cm behind the sewing foot.
Lace sewing foot The lace sewing foot enables you to sew ace and wide bands together or onto ano ther workpiece. / 4 1, • Setting the machine Set your machine to 3-thread overedge seam (narrow) and select a stitch length between 1 .5 and 2.0. 8 1 V 2 Working Raise the needle to its uppermost position and insert the lace sewing foot. Use the large screwdriver from the accessories to loosen screw 1 and adjust guide 2 so that the needle penetrates the lace as close to the edge as possible.
Thread chart for 2-, 3- and 4-thread overedge seam Fabric Stichlänge Faden Lightweight fabrics: Organdy, light-knit fabric, taffeta, silk, lining fabrics Cotton No. 50 Synthetic yarn No. 70 Cotton No. 40 Synthetic yarn No. 70 Cotton Synthetic yarn No. 30 No. 70 70 — — 2.0 — 4,0 mm 140 Medium-heavy fabrics: Cotton, tricot, linnen. dress materials Heavy fabrics: Tweed, suit materials, denim, heavy cloth 60 140 2.0 50 140 2.0 Cotton Synthetic yarn 60 No. 40 No. 70— 140 2.
Sewing problems and their solutions These machines have been developed for ease of operation and no difficult adjustments must be made. Sewing problems of the kind described below may occur due to minor adjustment and operating errors. They can be easily corrected by following the instruc tions. Problem Cause Solution Needle breakage Needle bent or point damaged Needle not fully inserted Insert new needle (see page 11).
Problem Cause Solution Machine will not operate, although mainns switch is on Power supply interrupted Close looper cover (see page 9). Fabric not neatly trimmed Sewing lint between upper and lower knife Clean knifes Lower knifeis blunt Replaces lower knife (see page 45). Thread tension too tight Reduce thread tension. Incorrect setting of differential feed Re-adjust diffential feed (see pages 24. 25). Thread hgas caught due to incorrect threading Thread correctly (see pages 12 18).
Specifications: Max. Sewing speed Seam width Stitch length 1300 stitches per minute 6.7 mm 3 F (‘ 1 mm) 4 mm Sewing foot hinged Lubrication Sewing foot height manual Overedge stroke Needle system 1 .5 mm EL X 705, Cat. No. 2002 80/11, 90/14 Needle size Number of threads Dimensions (length x height x width) Weight Contents of cardboard box 1 machine 1 foot control 1 instruction manual/guarantee certificate 1 lint box 1 machine cover 58 — — 4.5 mm 2. 3.
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hobbylock 4762 parts 20 Thread guides with colour coding 21 Telescopic thread guide 22 Set screw for adjusting sewing foot pressure 23 Thread chain cutter 24 Thread spool stand 25 Spool pin 26 Cote adapter 27 Machine socket, foot control with mains cord 28 Mains switch 29 Handwheel 30 Adjustment lever for differential feed 31 stitch length adjustment knob 32 Sewing foot lift 33 Rear thread guides 34 35 36 37 Lint box Foot control Foot control plug for machine Mains plug
